4. 🔐 VPN au Private DNS

Kama simu yako inatumia VPN au umeweka Private DNS, inaweza kushindwa ku-resolve internet.

✅ Solution:

Zima VPN

Nenda Settings > Network > Private DNS > Set to Off

5. 📡 Router yako yenyewe ndiyo mbovu

Wakati mwingine router hutoa network inayoonekana lakini haipo stable.

✅ Solution:
Restart router. Pia change channel (2.4GHz vs 5GHz) au factory reset router kama tatizo linaendelea.

8. 📱 Apps za Background zina-block WiFi

Baadhi ya apps kama firewalls, battery savers, au cleaner apps zinaweza zuia WiFi kuunganishwa vizuri.

✅ Solution:
Zima apps hizo temporarily au uninstall kabisa

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Google search feature.

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PIXEL MPYA (Non Active)💥
▪️Pixel 9a (8+128) - 1.45M
▪️Pixel 9a (8+256) - 1.7M
▪️Pixel 9 (12+128) - 1.75M
▪️Pixel 9 (12+256) - 2.1M
▪️Pixel 9 Pro (16+128) - 2.35M
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5. 🛰️ Phone not Registered on Network (NRN):
Inawezekana simu yako haijasajiliwa ipasavyo kwenye mtandao.

➡ Nenda Settings > Mobile Network > Manual Search > chagua mtandao wako mwenyewe.

Mara nyingi simu inaonyesha "full bars" lakini haipo kabisa kwenye active registration ya network

7. ☠️ Null IMEI / Invalid Baseband:
Simu ambazo zimetoka root au flash vibaya, huwa zinapoteza IMEI au baseband na hiyo inafanya uwe na signal fake tu.

✅ Hakiki kwa kupiga *# kama haionyeshi IMEI, tatizo ni kubwa zaidi.

2. 📶 Band Incompatibility:
Baadhi ya simu, hasa zile za kutoka Asia au Marekani, hazisapoti frequencies za mitandao ya Afrika.

➡ Inaonyesha signal, lakini network haiwezi kushika vizuri.

🔚 Solution:
✔ Tumia SIM yako kwenye simu nyingine kama inafanya kazi, basi tatizo ni simu yako.

✔ Hakikisha simu haina SIM lock.

✔ Rekebisha APN & Network Mode.

3. 🧠 Corrupted Baseband / Modem Firmware:
Baseband ni sehemu ya software inayoongoza mawasiliano ya simu.

➡ Ikiwa imeharibika, unaweza kuona signal lakini hakuna mawasiliano.

4. 🚫 IMSI or SIM Profile Issues:
Line yako inaweza kuwa imeharibika, ime-expire, au ina tatizo la SIM Profile.

➡ Jaribu kuiweka kwenye simu nyingine kujua kama bado inafanya kazi.

✔ Ikiwa root/flash umefanya, jaribu kuflash official firmware tena.

✔ Kwa cases ngumu, mtaalamu wa software anaweza kurekebisha baseband/IMEI.

1. ⚙️ Network Lock (SIM lock):
Simu yako inaweza kuwa imefungwa kwa mtandao fulani (e.g. Vodacom, Tigo), na unatumia line tofauti.

➡ Hili hujitokeza sana kwenye simu zilizotoka nje ya nchi.

6. 🛠️ Wrong APN or Network Mode:
Wakati mwingine, kuwa kwenye wrong network mode kama 2G only au 4G only (no voice) kunakata simu.

➡ Rekebisha kwa kuchagua “Auto/Preferred Network”.